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Filtering by: Academic Affiliation Wood Science and Engineering Remove constraint Academic Affiliation: Wood Science and Engineering Creator Meinzer, Frederick C. Remove constraint Creator: Meinzer, Frederick C. Rights Statement Copyright Not Evaluated Remove constraint Rights Statement: Copyright Not Evaluated

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Spring temperature responses of oaks are synchronous with North Atlantic conditions during the last deglaciation

Creator:

Voelker, Steven L., Noirot-Cosson, Paul-Emile, Stambaugh, Michael C., McMurry, Erin R., Meinzer, Frederick C., Lachenbruch, Barbara, and Guyette, Richard P.

Abstract:

Paleoclimate proxies based on the measurement of xylem cell anatomy have rarely been developed across the temperature range of a species or applied to wood predating the most recent millennium. Here we describe wood anatomy-based proxies for spring temperatures in central North America from modern bur oaks (Quercus macrocarpa Michx.)....

Resource Type:

Article
Tyloses and phenolic deposits in xylem vessels impede water transport in low-lignin transgenic poplars: a study by cryo-fluorescence microscopy

Creator:

Kitin, Peter, Voelker, Steven L., Meinzer, Frederick C., Beeckman, Hans, Strauss, Steven H., and Lachenbruch, Barbara

Abstract:

Of 14 transgenic poplar genotypes (Populus tremula × Populus alba) with antisense 4-coumarate:coenzyme A ligase that were grown in the field for 2 years, five that had substantial lignin reductions also had greatly reduced xylem-specific conductivity compared with that of control trees and those transgenic events with small reductions in...

Resource Type:

Article
The blind men and the elephant: The impact of context and scale in evaluating conflicts between plant hydraulic safety and efficiency

Creator:

Meinzer, Frederick C., McCulloh, Katherine A., Lachenbruch, Barbara, Woodruff, David R., and Johnson, Daniel M.

Abstract:

Given the fundamental importance of xylem safety and efficiency for plant survival and fitness, it is not surprising that these are among the most commonly studied features of hydraulic architecture. However, much remains to be learned about the nature and universality of conflicts between hydraulic safety and efficiency. Although selection...

Resource Type:

Article
Transgenic poplars with reduced lignin show impaired xylem conductivity, growth efficiency and survival

Creator:

Voelker, Steven L., Lachenbruch, Barbara, Meinzer, Frederick C., Kitin, Peter, and Strauss, Steven H.

Abstract:

We studied xylem anatomy and hydraulic architecture in 14 transgenic insertion events and a control line of hybrid poplar (Populus spp.) that varied in lignin content. Transgenic events had different levels of down‐regulation of two genes encoding 4‐coumarate:coenzyme A ligase (4CL). Two‐year‐old trees were characterized after growing either as free‐standing...

Resource Type:

Article
Climate-related trends in sapwood biophysical properties in two conifers: avoidance of hydraulic dysfunction through coordinated adjustments in xylem efficiency, safety, and capacitance.

Creator:

Barnard, David M., Meinzer, Frederick C., Lachenbruch, Barbara, McCulloh, Katherine A., Johnson, Daniel M., and Woodruff, David R.

Abstract:

In the Pacific north-west, the Cascade Mountain Range blocks much of the precipitation and maritime influence of the Pacific Ocean, resulting in distinct climates east and west of the mountains. The current study aimed to investigate relationships between water storage and transport properties in populations of Douglas-fir (Pseudotsuga menziesii) and...

Resource Type:

Article
An Annual Pattern of Native Embolism in Upper Branches of Four Tall Conifer Species

Creator:

McCulloh, Katherine A., Johnson, Daniel M., Meinzer, Frederick C., and Lachenbruch, Barbara

Abstract:

Premise of the study: The Pacific Northwest of North America experiences relatively mild winters and dry summers. For the tall coniferous trees that grow in this region, we predicted that loss in the hydraulic conductivity of uppermost branches would be avoided because of difficulty reversing accumulated emboli in xylem that...

Resource Type:

Article
Coordination of leaf structure and gas exchange along a height gradient in a tall conifer

Creator:

Woodruff, D. R., Meinzer, Frederick C., Lachenbruch, Barbara, and Johnson, D. M.

Abstract:

The gravitational component of water potential and frictional resistance during transpiration lead to substantial reductions in leaf water potential (Ψl) near the tops of tall trees, which can influence both leaf growth and physiology. We examined the relationships between morphological features and gas exchange in foliage collected near the tops...

Resource Type:

Article
A comparison of daily water use estimates derived from constant-heat sap-flow probe values and gravimetric measurements in pot-grown saplings.

Creator:

McCulloh, Katherine A., Winter, Klaus, Meinzer, Frederick C., Garcia, Milton, Aranda, Jorge, and Lachenbruch, Barbara

Abstract:

Use of Granier-style heat dissipation sensors to measure sap flow is common in plant physiology, ecology and hydrology. There has been concern that any change to the original Granier design invalidates the empirical relationship between sap flux density and the temperature difference between the probes. Here, we compared daily water...

Resource Type:

Article
Impacts of tree height on leaf hydraulic architecture and stomatal control in Douglas-fir

Creator:

Woodruff, David R., McCulloh, Katherine A., Warren, Jeffrey M., Meinzer, Frederick C., and Lachenbruch, Barbara

Abstract:

This study investigated the mechanisms involved in the regulation of stomatal closure in Douglas-fir and evaluated the potential impact of compensatory adjustments in response to increasing tree height upon these mechanisms. In the laboratory, we measured leaf hydraulic conductance (Kleaf) as leaf water potential (Yl) declined for comparison with in...

Resource Type:

Article
Transpiration-induced axial and radial tension gradients in trunks of Douglas-fir trees

Creator:

Domec, Jean-Christophe, Meinzer, Frederick C., Gartner, Barbara L., and Woodruff, D.

Abstract:

We determined the axial and radial xylem tension gradients in trunks of young Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) trees. Axial specific conductivity (ks-a) and sap flux density (Js) were measured at four consecutive depths within the sapwood at a stem height of 1 m. By definition, at a given position...

Resource Type:

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Academic Affiliation

Wood Science and Engineering[remove]18
Forest Ecosystems and Society3
Forest Science1

Creator

Meinzer, Frederick C.18
Lachenbruch, Barbara17
Mcculloh, Katherine A.9
Domec, Jean Christophe5
Woodruff, David R.5
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Date

Date range begin – Date range end

Current results range from 2006 to 2012

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Decade

2010-20197
2000-200911

Language

English [eng]18

Peer Reviewed

Yes6

Resource Type

Article18

Rights Statement

Copyright Not Evaluated[remove]18

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